C++ std:：vector中的奇怪字符

尝试获取所有子目录，最终获取子目录中的所有文件，我将传递一个std:：vector作为一个函数的引用，该函数实际获取所有目录。我无法在函数中找到cFileName，但一旦它返回main，向量就有奇怪的字符

当前我的字符集使用Unicode。当我使用多字节时，它实际上会打印奇怪的字符，现在它什么也不打印。该向量在其目录中确实包含某些内容。size返回一个大于0的值

真的想不出什么别的了。希望这是一个好问题。谢谢

#include <iostream>
#include <vector>
#include <Windows.h>
#include <tchar.h>
#include <stdio.h>

// Declare function prototypes
DWORD listDirectories(std::vector<TCHAR*>&);

// Global variable that holds the current working path of the program
TCHAR buffer[MAX_PATH];

void main()
{
    // Declare variables, dwCount for return value from listDirectories, directories stores all sub directories, cDirectory stores current directory
    DWORD dwCount;
    //std::vector<TCHAR*> directories;
    std::vector<TCHAR*> directories;
    TCHAR cDirectory[MAX_PATH];

    // Get current directory
    GetCurrentDirectory(MAX_PATH, buffer);

    // Set cDirectory (current directory) to buffer (ATM is current directory) + add \\ to the end and make it the working directory
    _tcscpy_s(cDirectory, buffer);
    _tcscat_s(cDirectory, L"\\*");

    // dwCount is count of how many directories found, to be used later
    dwCount = listDirectories(directories);

    // Range for loop to print each value in the std::vector<TCHAR*> directories
    for (auto tStr : directories) {
        // Doing wcout here prints weird characters.
        std::wcout << tStr << std::endl;
    }

    std::cin.get();
}   // end void main()

DWORD listDirectories(std::vector<TCHAR*> &directories)
{
    // Declare variables, count used for number of directories, hFind for FindFirstFile, data used to store file data
    DWORD count = 0;
    HANDLE hFind = INVALID_HANDLE_VALUE;
    WIN32_FIND_DATA data;
    TCHAR currentDir[MAX_PATH];

    // Copy the current working directory into currentDir, will be used for subDir
    _tcscpy_s(currentDir, buffer);

    // Append "\\*" to buffer to make it a working directory
    _tcscat_s(buffer, L"\\*");

    // Find first file in the current working directory, storying data in data as a reference
    hFind = FindFirstFile(buffer, &data);

    // If hFind is not an invalid handle
    if (hFind != INVALID_HANDLE_VALUE) {
        // Go through each file in the directory
        do
        {
            // If the file attributes is a directory
            if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
            {
                // Create a sub directory
                TCHAR subDir[MAX_PATH];

                // Fill subDir with current directory + "\\" + dir name
                _tcscpy_s(subDir, currentDir);
                _tcscat_s(subDir, L"\\");
                _tcscat_s(subDir, data.cFileName);

                // Fill subDir with current directory + "\\" + dir name
                //sprintf_s(subDir, "%s%s%s", currentDir, "\\", data.cFileName);

                // Add directory to my directories (std::vector<TCHAR*>) if count > 1, because I don't want the "." and ".." directories
                if (count > 1){
                    directories.push_back(subDir);
                    // Doing wcout here prints the subDir just fine and works properly
                    std::wcout << subDir << std::endl;
                }

                // Add 1 to count, used as the return for how many directories found in the current directory
                count++;
            }
        } while (FindNextFile(hFind, &data) != 0);
    }

    // Return count of directories found. -2 to get rid of the "." and ".." directories
    return (count - 2);
}   // end DWORD listDirectories(std::vector<TCHAR*>&)

在ListDirectory函数中

subDir是do的本地数组。。。而函数中的循环及其生命周期随着循环的每次迭代而结束

改变std:：vector目录；到std：：向量目录；你的代码应该能正常工作。现在，您将创建目录名的副本并将其添加到向量中

另一种选择是，在处理Windows API时，忘记所有TCHAR内容，只使用所有内容的宽字符版本

std::vector<std::wstring> directories;
wchar_t cDirectory[MAX_PATH];
...
hFind = FindFirstFileW(buffer, &data);

---

等等

是时候停止使用TCHAR了，除非您仍然支持Win98。将其设置为std:：basic_字符串是完美的。我对windows编码知之甚少。这只是我第一次尝试进入它。选择TCHAR是因为我知道它是支持多字节和unicode的char*类型定义。我只想使用wstring，因为我知道它更简单，如果它能与windowsapi一起工作的话。非常感谢。

std::vector<std::wstring> directories;
wchar_t cDirectory[MAX_PATH];
...
hFind = FindFirstFileW(buffer, &data);